Speaker enclosure

Abstract

A speaker enclosure including a pair of tubular cylinders, one of which is slidable inside the other, the first of the tubular cylinders having one end closed, one end open, and an opening in the wall thereof, the second of the tubular cylinders having one end open and a speaker located in the other end thereof. The speaker enclosure may also include a pair of tubular cylinders, one of which is slidable inside the other, the first of the tubular cylinders having one end closed, one end open, a speaker in the open end, and an opening in the wall thereof, the second of the tubular cylinders having both ends open.

What is claimed is: 
     
       1. An extensible speaker assembly for use in a motor vehicle comprising: a. an enclosed hollow chamber means for receiving sound waves from a speaker, said hollow chamber means having i. a first hollow tubular cylinder rigidly connected thereto for receiving sound waves generated from a speaker and conveying the sound waves to said chamber, and   ii. a second hollow tubular cylinder rigidly connected to said hollow chamber means for transmitting sound waves received inside said hollow chamber means to the outside of said hollow chamber means, said first tubular cylinder and said second tubular cylinder being open at both ends,     b. a third hollow tubular cylinder open at both ends, said third tubular cylinder being slidably connected to said first tubular cylinder,   c. a fourth hollow tubular cylinder open at both ends, said fourth tubular cylinder being slidably connected to said third tubular cylinder, and   d. a speaker connected to the inside of said fourth hollow tubular cylinder for generating sound waves.   
     
     
       2. The extensible speaker assembly of claim 1 wherein said speaker is connected to one of the ends of said fourth hollow tubular cylinder. 
     
     
       3. The extensible speaker assembly of claim 2 wherein said speaker is connected to the end of said fourth hollow tubular cylinder farthest away from said third tubular. 
     
     
       4. The extensible speaker assembly of claim 3 wherein said third tubular cylinder telescopes together with said first tubular cylinder and said fourth tubular cylinder.